---
title: "JavaScript to C Programming"
description: "Master C programming language from a JavaScript developer's perspective. Learn memory management, pointers, system programming, and low-level development."
---

# JavaScript → C Programming

Master the C programming language through the lens of a JavaScript developer. This comprehensive course will guide you from JavaScript's high-level abstractions to C's powerful low-level control, focusing on memory management, pointers, system programming, and performance optimization.

## Why Learn C?

C is the foundation of modern computing. Understanding C gives you:

- **Deep System Understanding**: Learn how computers actually work at the hardware level
- **Memory Control**: Master manual memory management and pointer operations
- **Performance Optimization**: Write high-performance code with minimal overhead
- **System Programming**: Build operating systems, drivers, and embedded applications
- **Career Growth**: C skills are highly valued in systems programming, embedded development, and performance-critical applications

## What You'll Learn

### Core Concepts
- **Memory Management**: From JavaScript's garbage collection to C's manual memory control
- **Pointers**: Master the most powerful and challenging concept in C
- **System Programming**: Understand how to interact directly with hardware
- **Performance Optimization**: Write code that runs at near-machine speed

### Practical Skills
- **Data Structures**: Implement arrays, linked lists, trees, and graphs from scratch
- **Algorithms**: Write efficient sorting, searching, and graph algorithms
- **File I/O**: Handle file operations and data persistence
- **Network Programming**: Build network applications and servers

### Advanced Topics
- **Multi-threading**: Concurrent programming with threads
- **System Calls**: Direct operating system interaction
- **Embedded Programming**: Microcontroller and IoT development
- **Performance Analysis**: Profiling and optimization techniques

## Learning Path

### Module 00: C Language Introduction
Understanding C's philosophy and how it differs from JavaScript

### Module 01: Syntax Comparison
Mapping JavaScript concepts to C syntax and structure

### Module 02: Variables and Memory
Understanding memory layout and variable storage

### Module 03: Pointer Fundamentals
Mastering the most important concept in C programming

### Module 04: Arrays and Strings
Working with arrays, strings, and character manipulation

### Module 05: Functions and Stack Management
Understanding function calls, parameters, and stack operations

### Module 06: Structures and Unions
Building complex data types and memory-efficient structures

### Module 07: Dynamic Memory Allocation
Managing memory dynamically with malloc, free, and related functions

### Module 08: File Operations
Reading, writing, and manipulating files and data streams

### Module 09: Algorithms and Data Structures
Implementing fundamental algorithms and data structures

### Module 10: System Programming
Interacting with the operating system and hardware

### Module 11: Projects
Building real-world applications and tools

### Module 12: Common Pitfalls
Avoiding memory errors and undefined behavior

### Module 13: Performance Optimization
Writing fast, efficient, and optimized code

### Module 14: Advanced Topics
Exploring modern C features and advanced techniques

## Interactive Learning

Each module includes:

- **Live Code Examples**: Run C code directly in your browser
- **Memory Visualization**: See how memory is allocated and used
- **Performance Comparisons**: Compare C and JavaScript implementations
- **Interactive Debugging**: Step through code execution
- **Real-time Error Detection**: Catch memory errors and undefined behavior

## Prerequisites

- Basic JavaScript knowledge
- Understanding of programming fundamentals
- Familiarity with command line tools
- No prior C experience required

## Tools and Environment

- **Online Compiler**: Run C code directly in your browser
- **Memory Visualizer**: See memory layout and pointer relationships
- **Debugger**: Step through code execution
- **Performance Profiler**: Analyze code performance
- **Error Detector**: Catch memory leaks and undefined behavior

## Start Your Journey

Begin with [Module 00: C Language Introduction](./js2c/module-00-c-introduction) to understand the fundamental differences between JavaScript and C, and learn how to think like a systems programmer.

Ready to dive into the world of low-level programming? Let's start building your C programming skills! 